Hello,
Welcome to Microsoft Q&A!
So, is there any such data available for windows os version distribution?
There is no such data report in the Partner Center that could show the OS version.
Yes, I mean you might need to code in your app to collect this data.
But you could use App Center in your app. This tool could monitor the status and usage of the app using the Analytics and Diagnostics services. The Devices and OS report could show the number of different device types and the number of different OS versions.
I'll also edit my answer.
Thank you.